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Breakthrough scientific study on precious coral identification leads to new DNA coral fingerprinting service by SSEF
It is the first major scientific study that details a methodology using minute amounts of DNA recovered from precious coral used in jewellery to identify their species
By: Diamond World News Service
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May 22 2020 4:31PM
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Reference: 24947  

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An exceptional precious coral necklace with 55 beads of up to 20 millimetres in diameter, from the Mediterranean Corallium rubrum species. DNA fingerprinting technology can provide scientific species documentation for such outstanding coral items found in jewellery. Photo: SSEF
An exceptional precious coral necklace with 55 beads of up to 20 millimetres in diameter, from the Mediterranean Corallium rubrum species. DNA fingerprinting technology can provide scientific species documentation for such outstanding coral items found in jewellery. Photo: SSEF

A breakthrough study entitled “DNA fingerprinting: an effective tool for taxonomic identification of precious corals in jewelry,” authored by researchers from the Swiss Gemmological Institute SSEF and the University of Zurich’s Institute of Forensic Medicine (IRM) and recently published in the leading peer-reviewed journal Scientific Reports (Nature Group), has led to a new service being offered by SSEF to aid in the traceability of precious coral jewellery.
 
It is the first major scientific study that details a methodology using minute amounts of DNA recovered from precious coral used in jewellery to identify their species.This is vital given that a number of precious coral species are listed on the Convention on International Trade in Endangered Species (CITES) Appendix III, and thus need to be correctly identified and declared in order to be legally traded.
 
The ability to trace precious corals back to their species-related and geographic origins can provide greater transparency, as well as supply important scientific information for the documentation of modern and historic items.
 
The DNA fingerprinting technology outlined in the article represents a game-changing way of assessing the species identity of precious corals found in the trade. Importantly, the technique described here is quasi non-destructive, requiring considerably less sample material than other methods, with testable DNA being recovered from as little as 2.3 milligrams (0.0115 carats) of material.
 
"We are proud to be able to offer this new service to the coral trade and contribute to greater traceability in the jewellery industry,” said Dr. Michael S. Krzemnicki, director of SSEF. “This service builds on our pioneering research into the genetic identification of pearls, and the development of new methods to increase the traceability of organic gem materials in the trade.”
 
Dr. Adelgunde Kratzer of the Institute of Forensic Medicine at the University of Zurich stated: “We are thrilled that this research collaboration has led to this joint publication and service. It is our hope that our DNA analysis of corals can contribute to the conservation of coral resources.”
 

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